Population Dynamics Test Review Question Preview (ID: 62979)


Population Dynamics Test Review. TEACHERS: click here for quick copy question ID numbers.

An environmental factor that causes a population to decrease is called
a) symbiosis
b) limiting factor
c) carrying capacity
d) niche

What is mutualism?
a) both organisms benefit and help each other
b) only 1 organism benefits and the other is not harmed
c) 1 organism is helped and the other is harmed
d)

What is commensalism?
a) both organisms benefit
b) one organism benefits and one is harmed
c) one organism benefits and the other organism is unaffected
d)

Which of the following would be an example of parasitism?
a) A tick on a deer
b) A bee pollinating a flower
c) A bird riding on a water buffalo
d) Ivy growing on a tree

In certain ecosystem, there is a population of wolves that feed primarily on a population of rabbits. If there is plenty of rabbit food for several years, the rabbit population increases. What will most likely be the result for the wolf population
a) The wolf population will increase
b) The wolf population will decrease
c) The wolf population will stay the same
d) The wolf population will go extinct

True or false: when a population goes above carrying capacity it can run out of resources.
a) True
b) False
c) Both
d) Maybe

Why might there be only a few squirrels in a big forest?
a) oo many tall trees to climb
b) Lots of owls live in the forest
c) Squirrels don't like trees
d) Not enough soft leaves for making nests

Wolves are hunting a lot of deer. What is the limiting factor for the deer?
a) predation
b) space
c) food
d) water

The population of salmon have decreased due to overfishing. Bears have decreased in population. What is the limiting factor for bears
a) space
b) food
c) water
d) predation

A ________ is the unique way an organism survives in an ecosystem; how they obtain their food, shelter, and avoid danger.
a) carrying capacity
b) limiting factor
c) competition
d) niche

All the prairie dogs living in the Wichita mountains are an example of a(n)
a) population
b) community
c) organism
d) ecosystem

The interaction that occurs between two or more organisms when they need the same limited resource is called
a) mutualism
b) predation
c) competition
d) symbiosis

Which example does NOT prevent a population from reaching its carrying capacity?
a) plenty of food
b) bad weather
c) disease
d) old age

Over time a rabbit population reaches its carrying capacity. Which factor would cause the carrying capacity to decrease?
a) an increase in the amount of shelter
b) an increase in the amount of water available per rabbit
c) a decrease in the number of predators
d) a decrease in the amount of food available per rabbit

What is symbiosis?
a) a distant interaction
b) a close, long-term interaction
c) a close, short-term interaction
d) a chemical interaction

Dirty water sources are a limiting factor in some communities. Is this an example of a Biotic or Abiotic limiting factor?
a) Biotic
b) Abiotic
c)
d)

A population of deer live in a forest. Which factor below would NOT be considered a limiting factor?
a) The size of the forest.
b) The amount of water available in the forest.
c) The amount of food available in the forest.
d) The amount of offspring each deer have.

Which of the following would be occupying the same niche?
a) A bird sitting on a tree and another bird sitting in a nest
b) A bobcat and mountain lion fighting over the same territory
c) A hawk sitting on a tree
d) A bobcat chasing after a rabbit

As a population reaches its carrying capacity, there is an increase competition for
a) Food
b) Shelter
c) Mates
d) All of the above

Which of the following are abiotic limiting factors?
a) The decomposers in an ecosystem.
b) The populations of producers in a given habitat.
c) Carrying capacities of several species
d) Water, space, and oxygen.

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